Acropectororenal dysplasia

Acropectororenal dysplasia, also known as acropectororenal field defect or F syndrome, is an extremely rare congenital malformation syndrome characterized by abnormalities affecting three primary body regions: the limbs (acro-), the chest wall (pectoro-), and the kidneys (renal). The condition was first described in the medical literature and involves a combination of upper limb defects, pectoral muscle anomalies, and renal malformations. Limb abnormalities may include preaxial polydactyly, thumb anomalies (such as hypoplasia or duplication), and other digital malformations. Chest wall findings typically involve hypoplasia or absence of the pectoralis muscles, which can be unilateral or bilateral. Renal anomalies may range from ectopic kidneys to renal agenesis or other structural kidney malformations. The condition shares clinical overlap with Poland syndrome and other acro-renal syndromes, making differential diagnosis important. The combination of limb, pectoral, and renal findings in the same individual distinguishes this entity from related conditions. Because of its extreme rarity, the natural history of the condition is not fully delineated. Management is symptomatic and supportive, focusing on the specific malformations present in each individual. Surgical correction may be considered for significant limb anomalies or functionally important pectoral defects. Renal anomalies require monitoring by a nephrologist to assess kidney function and detect potential complications. Genetic counseling is recommended for affected families.

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